Description:Collision Course: A fast paced arcade-style matching game that involves hand-eye coordination and strategy. Click groups of 2 or more identical gems to destroy them. If gems from the left and right collide, you lose a life. Press Space bar to use lightning and zap all gems on screen. You start the game with 5 lives and 3 charges of lightning. The speed of new lines increases at further levels. mouse click to shoot,Space: Use lightning charge